I wish Telegram secret conversations carried over to multiple devices. This is a thing I don't have to worry about with Signal or WhatsApp.
that tells you a little something about how their encryption keys work :)
WhatsApp secret conversations don't carry either over multiple devices if you don't activate sync with google drive (which kind of defeats the purpose of encryption anyway).
Yup. I used Signal for several years but moved away from it. It just was not a great product.
Is Signal's desktop experience still an electron app?
Yep, it's still terrible, and still refuses to load non-encrypted messages for you.
I just got onto Telegram this week and was pleasantly surprised to see completely native apps across iOS, iPadOS and a full featured native Mac OS X app.